Officer Snyder, who served in the Affton Southwest Precinct, and another officer were responding to a disturbance call just after 5 a.m. on the 10700 block of Arno Drive when the shooting occurred, a spokesperson for the department told NewsChannel 5.

Trenton Forster, 18, was charged with first-degree murder and armed criminal action. He's being held on a $1 million bond. (Photo: St. Louis County Police Department, St. Louis County Police Department)

Forster has been charged with first-degree murder and armed criminal action. He's being held on a $1 million bond. He attended Lindbergh High School but withdrew in May of 2016. He lived on Sequoia Court in St. Louis, less than three miles from where the shooting happened.

"His love for his family and friends was contagious and his commitment to the community he served was inspirational," described Tammy Iskarous, founder of Riverbend Family Ministries, a charity in Wood River where Snyder served on the board.

This is the first time an officer with the St. Louis County Police Department has died in the line of duty in nearly 16 years.

The last officer killed with the department was Sergeant Richard Weinhold on October 31, 2000.